Prophylactic heparin therapy is prescribed to treat thrombophlebitis in a multiparous client who gave birth 24 hours ago. After instructing the client about the medication, the nurse determines that...

Prophylactic heparin therapy is prescribed to treat thrombophlebitis in a multiparous client who gave birth 24 hours ago. After instructing the client about the medication, the nurse determines that the client understands the instructions when she states which of the following as the purpose of the drug?

1. To thin the blood clots.

2. To increase the lochial flow.

3. To increase the perspiration for diuresis.

4. To prevent further blood clot formation.